Spa flow-in unit



FIG. 1 is a front right top perspective view of a spa flow-in unitaccording to the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is a right side view thereof, the left side view being a mirrorimage thereof.

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines shown represent a portion of a spray flow-in unit andform no part of the claimed design.

CLAIM The ornamental design for a spa flow-in unit, as shown anddescribed.